Soft starters
Soft starters are designed to reduce the starting
current of 3-phase AC motors
Soft starters can be used with NTZ compressor
but, in order to ensure proper lubrication of
compressor parts, the settings must ensure that
the compressor start-up time is always less than
0.5 seconds.
In case of use with R454C or R455A make sure
that the softstarter selected is compatible with
A2L refrigerants.
The number of starts should be limited to 6 per
hour. HP/LP pressure equalization is required
before starting.
Electrical connections and wiring
AB245486497018en-000601
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Application Guidelines